/* Understanding AI — tier-1 section styles.
   Generated by scripts/generate-uai-html.py; edit the script, not this file.
   Colour variables come from tier-1-raw/style.css (light/dark aware). */

.uai-index, .uai-entry, .uai-companion, .uai-stream, .uai-contact,
.uai-wiki-index, .uai-wiki-article {
  max-width: 48rem;
  margin: 0 auto;
  padding: 2rem;
}

.uai-breadcrumb { margin-bottom: 1.5rem; font-size: 0.9rem; }

.uai-header h1 { font-size: 2.25rem; margin-bottom: 1rem; }

.uai-lede { font-size: 1.05rem; line-height: 1.7; }

.uai-lede-secondary,
.wiki-lede-secondary {
  color: var(--color-text-muted, #9CA3AF);
  font-size: 0.9rem;
  margin-top: 0.75rem;
}

.uai-streams, .uai-compendium { margin-top: 3rem; }

.uai-streams h2, .uai-compendium h2 { font-size: 1.5rem; margin-bottom: 0.35rem; }

.uai-section-sub {
  color: var(--color-text-muted, #9CA3AF);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.stream-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.stream-card {
  border: 1px solid var(--color-border, #2A3A52);
  border-radius: 8px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s;
}

.stream-card:hover { border-color: var(--color-accent, #C75B39); }

.stream-card.chosen {
  border-color: var(--color-accent, #C75B39);
  box-shadow: 0 0 0 1px var(--color-accent, #C75B39);
}

.stream-card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }

.stream-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted, #9CA3AF);
  line-height: 1.6;
  flex-grow: 1;
}

.stream-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.stream-view { font-size: 0.85rem; }

.stream-choose {
  font-size: 0.85rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--color-border, #2A3A52);
  border-radius: 6px;
  background: var(--color-surface, #1A2438);
  color: var(--color-text, #F0E6D3);
  cursor: pointer;
  font-family: inherit;
}

.stream-card.chosen .stream-choose {
  border-color: var(--color-accent, #C75B39);
  color: var(--color-accent, #C75B39);
}

.entry-list { display: flex; flex-direction: column; gap: 1.25rem; }

.entry-card {
  border: 1px solid var(--color-border, #2A3A52);
  border-radius: 8px;
  transition: border-color 0.2s;
}

.entry-card:hover { border-color: var(--color-accent, #C75B39); }

.entry-link {
  display: block;
  padding: 1.25rem 1.5rem 0.75rem;
  text-decoration: none;
  color: inherit;
}

.entry-badges {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.6rem;
  flex-wrap: wrap;
}

.badge {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  border: 1px solid var(--color-border, #2A3A52);
  color: var(--color-text-muted, #9CA3AF);
}

.read-tick {
  display: none;
  color: var(--color-accent, #C75B39);
  font-weight: 700;
  margin-left: auto;
}

.entry-card.is-read .read-tick { display: inline; }

.entry-card h3 { font-size: 1.2rem; margin-bottom: 0.35rem; }

.entry-meta {
  font-size: 0.85rem;
  color: var(--color-text-muted, #9CA3AF);
  margin-bottom: 0.6rem;
}

.entry-excerpt {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--color-text-muted, #9CA3AF);
}

.entry-companion-note {
  display: inline-block;
  margin: 0 1.5rem 1.1rem;
  font-size: 0.8rem;
  color: var(--color-accent, #C75B39);
}

.uai-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border, #2A3A52);
  font-size: 0.9rem;
  color: var(--color-text-muted, #9CA3AF);
}

/* --- Entry page --- */

.entry-header h1 { font-size: 1.9rem; line-height: 1.25; margin-bottom: 0.75rem; }

.entry-byline {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  color: var(--color-text-muted, #9CA3AF);
  font-size: 0.95rem;
}

.sep { color: var(--color-border, #2A3A52); }

.entry-authorbio {
  margin-top: 0.6rem;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--color-text-muted, #9CA3AF);
  border-left: 2px solid var(--color-border, #2A3A52);
  padding-left: 0.85rem;
}

.entry-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.75rem 0;
  align-items: center;
}

.original-cta {
  display: inline-block;
  padding: 0.6rem 1.1rem;
  border-radius: 8px;
  background: var(--color-accent, #C75B39);
  color: var(--color-bg, #0F1729);
  font-weight: 600;
  text-decoration: none;
  font-size: 0.95rem;
}

.companion-cta {
  display: inline-block;
  padding: 0.6rem 1.1rem;
  border-radius: 8px;
  border: 1px solid var(--color-accent, #C75B39);
  color: var(--color-accent, #C75B39);
  text-decoration: none;
  font-size: 0.95rem;
}

.read-toggle {
  padding: 0.6rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--color-border, #2A3A52);
  background: transparent;
  color: var(--color-text-muted, #9CA3AF);
  font-size: 0.85rem;
  font-family: inherit;
  cursor: pointer;
}

.read-toggle .when-read { display: none; }
.read-toggle.is-read .when-read { display: inline; color: var(--color-accent, #C75B39); }
.read-toggle.is-read .when-unread { display: none; }

.entry-summary p { line-height: 1.75; margin-bottom: 1rem; }

.entry-streams {
  margin-top: 2rem;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--color-border, #2A3A52);
  border-radius: 8px;
}

.entry-streams h2 { font-size: 1rem; margin-bottom: 0.5rem; }

.entry-streams ul {
  list-style: none;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0;
  margin: 0;
}

.entry-footer, .wiki-article-footer {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border, #2A3A52);
  font-size: 0.85rem;
  color: var(--color-text-muted, #9CA3AF);
}

/* --- Companion page --- */

.companion-kind, .stream-kicker, .wiki-kicker {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent, #C75B39);
  margin-bottom: 0.5rem;
}

.companion-header h1 { font-size: 1.75rem; line-height: 1.3; margin-bottom: 0.5rem; }

.companion-byline {
  color: var(--color-text-muted, #9CA3AF);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.companion-howto {
  color: var(--color-text-muted, #9CA3AF);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.companion-intro, .companion-while, .companion-tail { margin-top: 2.25rem; }

.companion-intro h2, .companion-while h2, .companion-tail h2 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--color-border, #2A3A52);
}

.companion-prose p { line-height: 1.75; margin-bottom: 1rem; }

.companion-prose ul, .companion-prose ol {
  margin: 0 0 1rem 1.25rem;
  line-height: 1.7;
}

.companion-prose blockquote {
  border-left: 3px solid var(--color-accent, #C75B39);
  padding: 0.35rem 0 0.35rem 1rem;
  margin: 0 0 1rem 0;
  color: var(--color-text-muted, #9CA3AF);
  font-style: italic;
}

.companion-sections { display: flex; flex-direction: column; gap: 0.6rem; }

.companion-section {
  border: 1px solid var(--color-border, #2A3A52);
  border-radius: 8px;
  overflow: hidden;
}

.companion-section summary {
  cursor: pointer;
  padding: 0.85rem 1.1rem;
  font-weight: 600;
  font-size: 0.98rem;
  list-style: none;
  position: relative;
}

.companion-section summary::-webkit-details-marker { display: none; }

.companion-section summary::after {
  content: '+';
  position: absolute;
  right: 1.1rem;
  color: var(--color-text-muted, #9CA3AF);
}

.companion-section[open] summary::after { content: '\2013'; }

.companion-section[open] summary { border-bottom: 1px solid var(--color-border, #2A3A52); }

.section-body { padding: 1rem 1.1rem 0.25rem; }

.companion-footer {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border, #2A3A52);
  font-size: 0.9rem;
  display: flex;
  gap: 0.6rem;
  align-items: center;
  flex-wrap: wrap;
}

/* --- Stream page --- */

.stream-header h1 { font-size: 1.9rem; margin-bottom: 0.6rem; }

.stream-description {
  color: var(--color-text-muted, #9CA3AF);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}

.stream-header .stream-choose {
  padding: 0.55rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--color-accent, #C75B39);
  background: transparent;
  color: var(--color-accent, #C75B39);
  font-size: 0.9rem;
}

.stream-choose .when-chosen { display: none; }
.stream-choose.is-chosen .when-chosen { display: inline; }
.stream-choose.is-chosen .when-unchosen { display: none; }

.stream-trunk, .stream-branches { margin-top: 2.5rem; }

.stream-trunk h2, .stream-branches h2 { font-size: 1.35rem; margin-bottom: 1rem; }

.step-list {
  list-style: none;
  counter-reset: steps;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.step {
  counter-increment: steps;
  border: 1px solid var(--color-border, #2A3A52);
  border-radius: 8px;
  position: relative;
  transition: border-color 0.2s;
}

.step:hover { border-color: var(--color-accent, #C75B39); }

.step-link {
  display: block;
  padding: 1rem 1.25rem 1rem 3.1rem;
  text-decoration: none;
  color: inherit;
}

.step-link::before {
  content: counter(steps);
  position: absolute;
  left: 1.1rem;
  top: 1rem;
  font-size: 0.9rem;
  color: var(--color-text-muted, #9CA3AF);
  font-variant-numeric: tabular-nums;
}

.step-title { font-weight: 600; margin-bottom: 0.25rem; }

.step .read-tick { margin-left: 0; margin-right: 0.35rem; font-weight: 400; }

.step.is-read .read-tick { display: inline; }

.step-meta {
  font-size: 0.8rem;
  color: var(--color-text-muted, #9CA3AF);
  margin-bottom: 0.4rem;
}

.step-note {
  font-size: 0.88rem;
  color: var(--color-text-muted, #9CA3AF);
  line-height: 1.55;
}

.branch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.branch h3 { font-size: 1.05rem; margin-bottom: 0.75rem; }

/* --- Contact page --- */

.uai-contact h1 { font-size: 1.9rem; margin-bottom: 1.5rem; }
.uai-contact section { margin-bottom: 2rem; }
.uai-contact h2 { font-size: 1.25rem; margin-bottom: 0.6rem; }
.uai-contact p, .uai-contact li { line-height: 1.7; margin-bottom: 0.75rem; }
.uai-contact ul { margin-left: 1.25rem; }

/* --- Wiki --- */

.wiki-header h1 { font-size: 2rem; margin-bottom: 0.75rem; }
.wiki-lede { line-height: 1.7; }

.wiki-list {
  list-style: none;
  padding: 0;
  margin-top: 2.5rem;
  columns: 2;
  column-gap: 2rem;
}

.wiki-list li {
  break-inside: avoid;
  margin-bottom: 0.5rem;
  font-size: 0.93rem;
  line-height: 1.5;
}

@media (max-width: 40rem) {
  .wiki-list { columns: 1; }
}

.uai-wiki-article { max-width: 52rem; }

.wiki-article-header h1 { font-size: 1.9rem; line-height: 1.25; margin-bottom: 1.5rem; }

.wiki-content p { line-height: 1.75; margin-bottom: 1rem; }

.wiki-content h2 {
  font-size: 1.4em;
  margin-top: 2.5em;
  margin-bottom: 0.75em;
  padding-bottom: 0.5em;
  border-bottom: 1px solid var(--color-border, #2A3A52);
}

.wiki-content h3 { font-size: 1.15em; margin-top: 2em; margin-bottom: 0.5em; }

.wiki-content h4 { font-size: 1em; font-style: italic; margin-top: 1.5em; margin-bottom: 0.5em; }

.wiki-content ul, .wiki-content ol { margin: 0 0 1rem 1.25rem; line-height: 1.7; }

.wiki-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 0.875em;
  display: block;
  overflow-x: auto;
}

.wiki-content th, .wiki-content td {
  padding: 0.5em 0.75em;
  border: 1px solid var(--color-border, #2A3A52);
  text-align: left;
}

.wiki-content th { font-weight: 600; }

.wiki-content blockquote {
  border-left: 3px solid var(--color-accent, #C75B39);
  padding-left: 1em;
  margin: 1.5em 0;
  color: var(--color-text-muted, #9CA3AF);
}

.wiki-content pre { overflow-x: auto; }